1 files changed, 91 insertions, 0 deletions
diff --git a/third_party/python/funcsigs/tests/test_funcsigs.py b/third_party/python/funcsigs/tests/test_funcsigs.py
new file mode 100644
index 0000000000..a7b9cca767
--- /dev/null
+++ b/third_party/python/funcsigs/tests/test_funcsigs.py
@@ -0,0 +1,91 @@
+import unittest2 as unittest
+
+import doctest
+import sys
+
+import funcsigs as inspect
+
+
+class TestFunctionSignatures(unittest.TestCase):
+
+    @staticmethod
+    def signature(func):
+        sig = inspect.signature(func)
+        return (tuple((param.name,
+                       (Ellipsis if param.default is param.empty else param.default),
+                       (Ellipsis if param.annotation is param.empty
+                                                        else param.annotation),
+                       str(param.kind).lower())
+                                    for param in sig.parameters.values()),
+                (Ellipsis if sig.return_annotation is sig.empty
+                                            else sig.return_annotation))
+
+    def test_zero_arguments(self):
+        def test():
+            pass
+        self.assertEqual(self.signature(test),
+                ((), Ellipsis))
+
+    def test_single_positional_argument(self):
+        def test(a):
+            pass
+        self.assertEqual(self.signature(test),
+                (((('a', Ellipsis, Ellipsis, "positional_or_keyword")),), Ellipsis))
+
+    def test_single_keyword_argument(self):
+        def test(a=None):
+            pass
+        self.assertEqual(self.signature(test),
+                (((('a', None, Ellipsis, "positional_or_keyword")),), Ellipsis))
+
+    def test_var_args(self):
+        def test(*args):
+            pass
+        self.assertEqual(self.signature(test),
+                (((('args', Ellipsis, Ellipsis, "var_positional")),), Ellipsis))
+
+    def test_keywords_args(self):
+        def test(**kwargs):
+            pass
+        self.assertEqual(self.signature(test),
+                (((('kwargs', Ellipsis, Ellipsis, "var_keyword")),), Ellipsis))
+
+    def test_multiple_arguments(self):
+        def test(a, b=None, *args, **kwargs):
+            pass
+        self.assertEqual(self.signature(test), ((
+            ('a', Ellipsis, Ellipsis, "positional_or_keyword"),
+            ('b', None, Ellipsis, "positional_or_keyword"),
+            ('args', Ellipsis, Ellipsis, "var_positional"),
+            ('kwargs', Ellipsis, Ellipsis, "var_keyword"),
+            ), Ellipsis))
+
+    def test_has_version(self):
+        self.assertTrue(inspect.__version__)
+
+    def test_readme(self):
+        # XXX: This fails but doesn't fail the build.
+	# (and the syntax isn't valid on all pythons so that seems a little
+	# hard to get right.
+        doctest.testfile('../README.rst')
+
+    def test_unbound_method(self):
+        self_kind = "positional_or_keyword"
+        class Test(object):
+            def method(self):
+                pass
+            def method_with_args(self, a):
+                pass
+            def method_with_varargs(*args):
+                pass
+        self.assertEqual(
+            self.signature(Test.method),
+            (((('self', Ellipsis, Ellipsis, self_kind)),), Ellipsis))
+        self.assertEqual(
+            self.signature(Test.method_with_args),
+            ((('self', Ellipsis, Ellipsis, self_kind),
+              ('a', Ellipsis, Ellipsis, "positional_or_keyword"),
+                ), Ellipsis))
+        self.assertEqual(
+            self.signature(Test.method_with_varargs),
+            ((('args', Ellipsis, Ellipsis, "var_positional"),), Ellipsis))